Wrench



M. BELCHER.

WRENCH.

APPLLcATloNy FILED MAR.3,1921.

1,386,229. Patented Aw. 2,1921.

UNITED STATES MARK BELCHER, OF GOOSE CREEK, TEXAS.

WRENCH.

Specification of Letters Patent.

Patented Aug. 2, 1921.

Application led March 3, 1921, Serial No. 449,476.

To all whom t may concern Be it known that I, MARK BnLoHnn, a citizen ofthe United States of America, and resident of Goose Creek, in the countyof Harris and State of Texas, have invented certain new and usefulImprovements in Wrenches, of which the following is a specification.

This invention relates to tools and particularly to wrenches, the saidinvention having for its object the provision of novel means whereby theengaging faces of the jaws may be renewed or changed for the purpose ofsubstituting those of different contours in order that a wrench may bemade convertible from a nut to a pipe wrench or the like; the saidinvention having for its further object the provision of novel meanswhereby the faces of the jaws may be securely held in place withoutliability of developing lost motion.

A still further object of this invention is to produce a wrench havingchangeable jaw faces which faces may be readily applied to or removedfrom the jaws, making it possible to prolong the utility of a wrench byreason of the fact that worn or impaired faces may be displaced andrenewed, a condition which will result in economical maintenance of suchan equipment.

IVith the foregoing and other objects in view, the invention consists inthe details of construction, and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to theaccompanying drawings forming part of this application wherein likecharacters denote corresponding parts in the several views, and inwhich- Figure 1 illustrates a view in elevation of a fragment of awrench showing jaw faces embodying the invention applied thereto;

Fig. 2 illustrates a front elevation thereof;

Fig. 3 illustrates a perspective view of the lower jaw face; and

4 illustrates a perspective view of the upper jaw face.

In these drawings 5 denotes a fragment of a handle having a jaw 6integral therewith, and 7 denotes a movable jaw which may be adjustablyconnected to the handle in any appropriate manner. As the details bywhich these parts are assembled or associated are immaterial, they willnot be described in detail.

For the purpose of carrying the invention into effect, the jaw 6 has aseat or groove 8 formed in it, preferably of the configuration shown inFig. 2 and it is intended to receive the rib 9 formed preferablyintegral with the face plate 10. rIhe jaw has a transversely disposedaperture l1 and the rib has an aperture 12 which is adapted to alinetherewith for the purpose of receiving a fastening 13 which may be inthe nature of a pin or rivet. The teeth 14 of the face plate may be ofany appropriate configuration.

The jaw 6 has an end lug 1.5 recessed to form a seat 16 in which theinner edge of the face plate is seated and preferably the joint betweenthese elements is quite close to prevent any liability of lost motion.

rThe upper jaw is recessed as at 17 to form a seat for a fin 18 formedon the face plate j 19, the said face plate having its outer edgebeveled to form a projection 20 which enters a recess 2l formed in theinner edge of the jaw at the outer end. The inner edge of the face plateis curved as at 22 and serves to force the projection 2O into the seatto insure a tight fitting of the parts when the fin 18 of the face plateis inserted in the seat or recess 17 of the jaw. The jaw 7 also has atransversely disposed aperture 23 with which an aperture Q4 in the iin18 alines for receiving a fastening 25 such as a pin or rivet by whichthe face plate is secured to the jaw.

As has been stated, these face plates are removable although whenproperly seated and secured, they will withstand wear to which theseelements are usually subjected.

The construction and operation of the device will, it is thought, beunderstood from the foregoing description without a rsum of theoperation, as a description of the functions and relations of parts havebeen given in connection with a description of the elements themselves.

I claim:

l. In a wrench, a stationary jaw and a movable jaw, the said stationaryjaw having a recess extending from its outer edge to the inner edge, thesaid groove having a restricted opening at its point of merger with theouter face of the aw, a face plate having a rib conforming to thecontour of the recess, the said rib fitting in the recess, a lug at theinner edge of the jaw having a recess in its outer face in which theedge of the face plate 1s seated, and means for securing the face plateto the jaw.

2. In a wrench, a stationary jaw and av movable jaw, the said movablejaw havingV a recess in its inner face and its inner surface at theouter end of the jaw, a 'face plate having a projection extending fromvits inner surface seated in tlieiirst mentioned recess of the movable jaw, and a projection on its outer edge fitting in tlie second men-.tioned recess of the movable jaw, the said stricted opening atvitspoint of merger with the` outer face of the jaw, a face plate having arib conforming to the contour of the recess, the saidv rib fitting inthe recess, a lug at the inner edge of the jaw having a recess in itsouter the face pla-te is seated, means for securing the tace plate tothe j aw, the said movable jaw having a recess in its inner face and itsinner surface at the outer vend of the jaw, a face plate havingprojection eX- tending' from its inner surface seated in the iirstmentioned recess of the movable jaw and a projection on its outer edgefitting in the second mentioned recess of the movable jaw,'tlie saidface plate having a curved inner eds'fe iitting to the contour of thejaw, and means for securing the projections of tlie face pla-te to thesaid movable j avv.

MARK BELCHER.

face in which the edge of

